Sthlar

From LSWiki

This is a dracon with green scales and black eyes. Sthlar is the
Shatterspire guard's drill sergeant, the primary trainer of new recruits. It
is a rough-looking, snaggle-toothed specimen. An unlit stub of cigar with
blackened ash on its end hangs from one side of its mouth.

Info

Sthlar is an instructor and responds to the following verbal commands:
Availability inquiry: Sergeant, what skills do you train?
Cost inquiry: Sergeant, what would a lesson in <subject> cost?
Instruction request: Sergeant, train me in <subject(s)>.